Physics

And why is the black hole at the center of our own galaxy so dim?

The “pinball” model of a slipping fault line borrows from the mathematics of avalanches.

The first official evidence of a key imbalance between neutrinos and antineutrinos provides one of the best clues for why the universe contains something rather than nothing.

Freeman Dyson — physicist, mathematician, writer and idea factory — died on February 28, but his vitality lives on.

The laws of physics imply that the passage of time is an illusion. To avoid this conclusion, we might have to rethink the reality of infinitely precise numbers.

Sometimes a mirror that reflects 99.9999% of light isn’t good enough.

This April, find the fatal flaws in two paradoxical claims — one about a perpetual source of energy and the other about whether you will ever see the solution to these puzzles.

Three progressively heavier copies of each type of matter particle exist, and no one knows why. A new paper by Steven Weinberg takes a stab at explaining the pattern.

While the age-old chicken-and-egg paradox is easily answered, the question of infinite regress in physics is far from resolved.